Welcome to your CHT/IAT TGT PCM Practice set-1
This practice set contains 30 question .
Each Question carries 1 mark.
There is a negative marking of 0.25 marks for each wrong response .
1.
Write 5th term of G.P. is 2, find the product of first 9 terms
2.
If x-by+3=0 , ax+2y-3=0 are consistant and dependant . Then the values of a and b will be respectively
3.
The probability of not getting a sum 7 in a single throw with a pair of dice is
4.
The Potassium graphite and Calcium Graphite can be mostly used as which among the following?
5.
If a constant force is applied to mass, it moves with a uniform
6.
The ionic radii of N3-, O2-, F- and Na+ follows the order
7.
. A wheel with 8 spokes is rotated in a plane normal to the earth’s magnetic field so that an emf of 4 mV is induced between the axel and rim of the wheel. Keeping all other things unchanged, the number of spokes is increased to 16. Now , the emf between the axel and the rim of the wheel is
8.
Two tubes A and B are in series. Radius of A is R and that of B 2R . If water flows through A with velocity then velocity of water through B is
9.
The points of trisection of the line segment AB , joining the points (3,-2) and B(-3, 4) are
10.
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of.
11.
In the binomial distribution the mean of the number of heads in 15 tosses of a coin is
12.
An inductance of 2 henry is connected in a D.C. circuit. Then the value of inductive reactance is
13.
The critical velocity for a non-viscous liquid is
14.
Three 4 ohm resistors are connected in the form of an equilateral triangle . The total resistance between any two corners is
15.
. The half-life of a radioactive element is 1580 years . How long will it take to reduce to 1/4th of its original mass ?
16.
Which of the following in case of a discrete data, is not equal to the median
17.
. The weight of the body at the earth’s surface is W. At a depth half way to the centre of earth , it will be (assuming uniform density in earth)
18.
Transuranic elements are those which are
19.
An oxide of metal has 20% oxygen , the eq. wt. of oxide is
20.
A body falls 16 metres in the first second of its motion , 48 metres in the second, 80 metres in the third, 112 metres in the fourth and so on. How far does it fall during the 11th second of its motion.
21.
The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is ________
22.
How are the point (3,4) and (2,-6) situated w.r.t the line 3x-4y-8= 0 ?
23.
The most commonly used bleaching agent is
24.
. A certain volume of water is taken from the surface of a lake to a depth ‘h’ . To calculate the change in its volume, we shall have to take into consideration its
25.
Two finite sets have m and n elements . The total number of subsets of the first is 56 more than the total number of subsets of the second set. The values of m and n are
26.
. A body is released from the top of the tower H metre high. It takes t second to reach the ground. Where is the body t/2 secound after release ?
27.
Which of the following has the longest wavelength?
28.
The difference between two numbers is five and the difference between their squares is 65 . The larger number is
29.
Which method is used in general to obtain metal from its sulphide ore?
30.
The values of observed and calculated molecular weights of silver nitrate are 92.64 and 170 respectively . The degree of dissociation of silver nitrate is
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